28285112542 has 8 divisors (see below), whose sum is σ = 42435655416. Its totient is φ = 14139894072.

The previous prime is 28285112507. The next prime is 28285112551. The reversal of 28285112542 is 24521158282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28285112495 and 28285112504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317793 + ... + 1339084.

It is an arithmetic number, because the mean of its divisors is an integer number (5304456927).

Almost surely, 2^28285112542 is an apocalyptic number.

28285112542 is a deficient number, since it is larger than the sum of its proper divisors (14150542874).

28285112542 is a wasteful number, since it uses less digits than its factorization.

28285112542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662202.

The product of its digits is 102400, while the sum is 40.

The spelling of 28285112542 in words is "twenty-eight billion, two hundred eighty-five million, one hundred twelve thousand, five hundred forty-two".